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Activity Number:
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539
- Challenging Signal Detection Problems in Astronomy
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Type:
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Topic Contributed
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Date/Time:
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Thursday, August 6, 2020 : 1:00 PM to 2:50 PM
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Sponsor:
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Astrostatistics Special Interest Group
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Abstract #313810
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Title:
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Statistical Opportunities and Challenges of Multiepoch Photometric Surveys
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Author(s):
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Tamas Budavari*
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Companies:
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The Johns Hopkins University
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Keywords:
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photometric surveys;
image registration;
data fusion
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Abstract:
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Refraction by the atmosphere causes measured source directions to change depending on the airmass through which the observations are taken. This wavelength-dependent subtle shift called differential chromatic refraction provides new opportunities for modern ground-based astronomy surveys to obtain additional spectral information. Based on simulations of Large Synoptic Survey Telescope exposures, we expect this prism effect to be measurable from repeated observations of the same part of the sky over a range of different airmasses and parallactic angles. We will discuss initial successes and the challenges to infer high-resolution spectral and spatial information from the new-generation time-domain experiments.
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Authors who are presenting talks have a * after their name.
